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(im Model) G. B. MGGRAGKEN 8v S. HAMER.

SPINDLE AND BEARING THEREFOB..

'Patented 1360.19. 1882.

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ATTORNEYS.

WITNBSSES:

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g UNITED t STMESv PATENT @Erica GEORGE B. MCCRACKEN AD SAMUEL HAMER,-OF-WlLLlll/lANTlC, CONN.

SPINDLE AND BEARING THEREFOR.

SPECIFICATION forming part of Letters Patent No. 269,438, dated December19, 1832. Application filed May 13, 1882. (No model.) i

To all whom it may concer-n v Be it known that we, GEORGE B. MoGEAoK- ENand SAMUEL HAMEn, of Wi11imantic,in the county of Windham and State ofConnecticut, have invented a new and useful Improvement in Spindles andBearings Therefor, of which the following is a full, clear, and exactdescription.

Our invention relates to that class of spindies in which the bobbin isheld steady at the top by a short spindle and turned by a whirl placedon a central stud and it consists in the construction, arrangement, andcombination of the parts of the spindle, whereby the bobbin is made torun easy, steady, and true, the bearings properly oiled without the oilretarding the motion of the spindle or soiling the bobbin,

Vthe oil used over and over again, and the supply of oil in thereservoir not agitated by the motion of the spindle, and also wherebythe p parts ofthe spindle may be easily taken apart for cleaning andthe`wearing parts replaced with ease and small expense, all ashereinafter described.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in

which similar letters of reference indicate corresponding parts in allthe figures.

Figure l is an elevation of our new and improved spindle and a portionof the rail with the bobbin removed. Fig. 2 is an elevation of thebobbin. Fig. 3 is a central vertical section, part in elevation, ot'ourinvention. Fig.

4 is an elevation of the bushing in which the.

short spindle B is held. Fig. 5 is an inverted plan ot' the lower endofthe said bushing, showing the perforations therein. Fig. 6 is anelevation ot' the bushing D, forming the upper bearing of the sleeve E.Fig. 7 is a cross-sectional view'of the bushing D, showing the groovestherein. Fig. 8 is a partial sectional elevation of said sleeve E; andFig. 9 is an ele` vation of the tube placed'in the lower oil-cup,

` F, for preventing agitation ofthe oil in the cup from the rapidrevolution of the downward extension ofthe whirl G of the spindle.

A represents the iron base of the spindle, which is cast so as to formthe oil-reservoi r F, in which the oil for lubricating the lowerbearings of the spindle is placed. rlhe bottom of this reservoir isformed with the annular depression or channel f." for the retention ofany sediment or gritty deposits that may be in the oil, and the base Ais adapted to be secured to the rail Hin the ordinary manner.

Firlnly screwed into the base A is the stud C, which is made smallenough to be slightly elastic, but not so elastic that it will be liableto be deflected by the pull ot' the band which turns whirl G. The objectof making this stud slender is to so condition the spindle that it willadjust itself to any unequal distribution oftheload, the same as apacked bolster will do.

The sleeve E is placed upon the stud C and turns with the whirl Gr, andsurrounding the sleeve and the stud is the short tube J, which ervoir.The lower edge of the tube J is by preference formed with the notchesjj, through which the oil passes from the main body ofthe reservoir toand in cont-act with the sleeve and stud. lower end the bushing A',which tits and turns upon the stud C and forms the lower bearing for thesleeve, and formed upon or secured to the outside ofthe sleeve are thecollars b and b', the latter being' at the upper end of the sleeve, asshown. AThese collars tit snugly the interior -of the hollow andslightly-tapered upward extension d of the whirl Gr, so that the sleeveE is made fast to the whirl, and is thus caused to turn with it. Thelower end of the bushing A ot' the sleeve E rests upon the bottom-oftheoil-reservoir F, and is beveled od', as shown at i t', for reducingthefriction and to facilitate the inflow of oil from the reservoir to itsbearings upon the stud C. The bushing D is titted snugly into the sleeveE a suitable distance above the bushing A', and vforms the upper bearingfor the sleeve E. '.lhis bushing D is formed with the oil passages orgutters e e upon its outside, as shown clearly in Fig.7. When thespindle is in use the rapid revolution of the sleeve E will cause theoil to be drawn up between the stud C and the inner Wall of the sleevefrom the bushing A', and

Tile sleeve E has secured init at its TOC to Work between the stud C andthe inner the sleeve E above the bushing D, and above the collarl b',where quite a quantity will be maintained, which w.ill always insure thethorough lubrication of the bearing 'between the bushing D and the studC.

Above the bushing D the sleeve Eis by preference formed upon the inside,with the spiral groove or thread c, which will tend to carry or forcethe oil back through the gutters e c ot' the' bushing D and down to thereservoir F, so that .the oil will be used over and over again.

The stud G may, if found necessary, be formed with a spiral groove orthread for assisting the oil to rise from the reservoir for lubricatingthe bushing D. By thisl means it will be seen that it will be impossiblefor the oil to clog up the oil-passa ges, so as to materially interferewith perfect lubrication, as the gutters in the bushing D, in connectionwith the spiral grooves in the sleeve E, furnish several sources ofsupply, allot' which are not likely to get clogged at the same time. Theupper end oi' the stud C isheaded, as shown atti", which is `centrallysocketed, as shown at f' in Fig. 3, and inthis socket the lower end ofthe short spindle B takes its bearing.

To the upper end of the stud G is secured the shellK, the lower end ofwhich forms a stop for the upper end of the sleeve E to strike againstwhen dofng. In the upper end of the shell K is screwed the bushing L,which is formed with the downward extension L', which incloses thegreater part ot the short spindle B, as shown in Fig. 3. ,At the lowerend of the downward extension Ll ofthe bushingisformed the collar l,extending across the space o, between the shell K and the outside of theextension L', which forms an oil-reservoir for holding the supply of oilfor lubricating the upper bearings of the spindle, and this reservoir ocommunicates with the lower oil-reservoir p through the perforations gg, made through the collar l of the extension L'.

The reservoirs 0 and p are lilled with oil through the passage h andside passages, t" i', made in the upper end of the short spindle B, andthe vertical passages e' e', made in'the bushingL. (Shownin Fig. 3.) Thedownward extension L' forms a tube, through which' the oil is drawn bythe .rapid revolution of the spindle from thelowcr oil-reservoirp up tothe bearingof the short spindle B in the bushing L. This raising of theoilmay be aided, if desired,by forming a spiral groove or thread in theinside oi' the downward extension L. The collar l fits the shell K andprevents the oil in the reservoir o from being agitated by therevolution of the spindle. Reservoirs o and p are practically one, bothbeing kept full of oil, the collar Zserving to check the violent motionot' the oil, which might otherwise be driven up away from the step j' bythe centrifugal force of collar m on the spindle B. The oil,at`terpassing up th`e spindle B and sleeve L' for oiling the spindle, passesinto the passages e e" in the bushing back to the reservoirs o and p, tobe used over again. The hole t in the upper end of the bushing L servesfor a vent, and as a place to insert a tool to serve as a lever orwrench for unscrewing the bushing. t' is a similar hole or passagethrough the lower end ot' the shell K and through the stud C forreceiving a tool for unscrewing the stud from the casting A.

The upward extension d ofthe whirl G is, as above mentioned, madeslightly tapering or conical, so that the bobbin N will t tightly uponit. The upper end of the bobbin ts upon the upper end of the shortspindle B, by which it is steadied, and the short spindle revolves withthe bobbin. By this means it will be seen that the weight of metal thatrevolves with the bobbin is reduced to the minimum, thus requiring lesspower to revolve the spindie, and obvating, to a great extent, thevibration which the spindle would otherwise have. The passage h throughthe short spindle B, while serving for an oil-duct, also materiallylightens the spindle without impairing its strength.

Upon the lower end of the short spindle is driven the collar m, whichprevents the spindle from being raised out of its step in the head fwhen dofiug. In filling, through the passage h of the short spindle, thereservoirs 0 and p with oil, shouldv the oil happen to overow throughthe holes t, it will pass down the outside of the shell K, into theupper end of the upward extension d of the whirl, and from thence,through the gutters e in the bushing D, down inside of thc sleeve E intothe lower reservoir F, and not in any manner soil the bobbin.

By this construction and method of oiling it will be seen that theoiling is positive and sure, that the reservoirs will hold enough oil torun a long time without refilling, and that the reservoirs are soarranged that the motion of the spindle will not be retarded by thesupply of the oil in the reservoir, nor the supply agitated by themotion of the spindle. 1t will also be seen that, the bobbin being heldonly at top and bottom, and the weight of metal revolving therewithbeing.very small, the spindle will run very light, steady, and true;that the size of the bearings does not exceed the usual size ot the bestspindles; that the side pull ot' the baud is done away with. and that incase of wear the bushings A', D, and L can be readily and easilyreplaced at a small cost and very little delay, and the spindle can alsobe easily taken apart for cleaning and repairs.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-

l. The combination, with the fixed stud C and the short spindle B,stepped to revolve therein, of the shell K, secured upon said stud, andthe bushing L, secured to shell K and adapted to serve as a bearing tospindle B, as shown and described.

2. The combination, with the fixed stud C,

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provided with head f, forming the bottom of reservoir p, of the shell K,forming its side walls, and the downward extension L', provided with thecollar l, forming its top, as shown and described.

3. The combination, with the shell K, ot' the bushing L, provided withthe downward eX- tension L and collar l, as shown and described.

4. The combination, with the stud C, provided with the headf andsocketj", the shell K, the bushing L, provided with the extension L',passages e', and collar l, having passages f/ through it, and thereservoirs op, of the spindle B, provided with the 'oil-passage 7L i',as shown and described.

5. The combination, with the bushing L and its reduced downwardextension L', having passages e', of the spindle B, provided `with thepassages li i, communicating with the said passages e', the latteropening through the shoulder of bushing L, outside of its extension L',as shown and described.

6. The combination, with the stud C, the shell K, secured to the upperend thereof, and the bushing,` L, provided with the downward extensionL', of the spindle B, stepped in stud O and provided with the collar m,as shown and described.

7. The stud C and the shell K, secured to the upper end ofthe same, incombination with the spindle B, the bushing L, provided with downwardextension L', and collar Z, forming the oil-reservoir p, as shown anddescribed.

S. The sleeve E, provided with flanges or collars b b', in combinationwith the tapering,` upward extension d, fitting on said collars, and thewhirl G, of which said extension is apart, as shown and described.l

9. Thewhirl G, provided with extension d, sleeve E, stud C, and bushingsD A, adapted to rotate thereon, in combination with the shell K, thebushing L, and the spindle B, stepped in the end of stud C, as shown anddescribed.

10. The whirl G, having the upward extension d, and the sleeve E,secured therein, in combination with 'the stud C, spindle B, shell K,the bushing L, having the downward extension L', and the reservoirs0,10, and F, as shown and described. f

11. The bushing D, formed with the gutters e e, in combination with thestud C and sleeve E, substantially as described.

GEORGE B. MCORAOKEN. SAMUEL HAMER.

Witnesses:

JAMES WALDEN, LEWIS C. WEAVER.

